The custom actions are perhaps the most interesting part in this update. With a custom action, you can link together or customize a number of Airmail’s different features. For example, you can create an action that marks an email as read, snoozes it for a week, then sends you a reminder later, or you can do something simpler like adding a button to send messages straight to Trello. Also new in this update is integration with Workflow. This allows you to certain tasks a little quicker in Airmail, like stripping an email of all the cruft then saving it as a PDF. There are a lot of possibilities here depending on what you need to do. It’s a nice set of new customization options that should provide all kinds of fun new features.